Tammy and Nora went shopping with a total of $731. After Tammy spent
45 of her money and Nora spent $51, the ratio of Nora's money became 3 times as much as Tammy's money. Find the ratio of Tammy's money to Nora's money at first.
| |
Tammy |
Nora |
| Before |
5 u |
3 u + 51 |
| Change |
- 4 u |
- 51 |
| After |
1 u |
|
| Comparing between Tammy and Nora in the end |
1 u |
3 u |
Total amount that Tammy and Nora had at first
= 5 u + 3 u + 51
= 8 u + 51
8 u + 51 = 731
5 u + 4 u = 731 - 51
8 u = 680
1 u = 680 ÷ 8 = 85
Amount that Tammy had at first
= 5 u
= 5 x 85
= $425
Amount that Nora had at first
= 731 - 425
= $306
At first
Tammy : Nora
425 : 306
25 : 18
Answer(s): 25 : 18
